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Namespace maintains direct integrations with common developer tooling and frameworks. But even when your tooling is not natively supported yet, you can configure your tooling to benefit from Namespace’s caching solutions with a few simple steps.

Using Cache Volumes

Cache Volumes offer unparalleled performance for your cache artifacts. They are provisioned as a mount with full read/write access, allowing you to retain arbitrary files and directories in the cache.

From GitHub Actions

To get started with Cache Volumes from Namespace runners you need to enable caching in your Runner Profile and add nscloud-cache-action to your workflow.nscloud-cache-action has native caching support for many common frameworks. In case your framework is not integrated yet, you can still cache arbitrary paths in your GitHub Actions workflows, making it compatible with virtually any toolchain. To get started, simply research the cache location of your framework and instruct Namespace to cache this path.

name: Build with Namespace Cache
on: [push, pull_request]

jobs:
  build:
    runs-on: namespace-profile-webbuilder
    steps:
      - uses: actions/checkout@v4

- name: Setup Namespace Cache
        uses: namespacelabs/nscloud-cache-action@v1
        with:
          cache: |
            npm
            playwright
          path: |
            .next/cache

- name: Install dependencies
        run: npm install

- name: Build application
        run: npm run build

Using Cache Mounts

Namespace Docker Builders offer high-performance cold builds, and come with maximum caching builtin - no additional setup required.You can still optimize your build definition to also benefit from partial cache hits in case your build inputs change. A common strategy to improve your build performance is the adoption of build cache mounts, allowing you to persist cache data across container builds and reduce build times significantly.

Framework-Specific Examples

Python with pip

This example copies requirements.txt first, to ensure that code changes do not lead to a cache miss. In case dependencies are added to requirements.txt, the usage of the cache mount ensures that the pip cache is retained across builds.

FROM python:3.11-slim
WORKDIR /app

# Install dependencies with cache
COPY requirements.txt .
RUN --mount=type=cache,target=/root/.cache/pip \
    pip install --no-deps -r requirements.txt

# Copy and build application
COPY . .
RUN --mount=type=cache,target=/app/.cache \
    python setup.py build

APT packages

You can retain the APT package cache in your Docker cache by mounting /var/cache/apt and /var/lib/apt. Apt needs exclusive access to its data. To achieve this, you can select sharing=locked which makes concurrent builds wait for another.

RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
    --mount=type=cache,target=/var/lib/apt,sharing=locked \
    apt update && apt-get --no-install-recommends install -y gcc

Go Applications

For Go applications, it is recommended to copy go.mod and go.sum first, to ensure that code changes do not lead to a cache miss. In case dependencies are added, the usage of the cache mount ensures that the go module cache is kept.

FROM golang:1.21-alpine
WORKDIR /app

# Copy go mod files
COPY go.mod go.sum ./

# Download dependencies with cache
RUN --mount=type=cache,target=/go/pkg/mod \
    --mount=type=cache,target=/root/.cache/go-build \
    go mod download

# Build application
COPY . .
RUN --mount=type=cache,target=/go/pkg/mod \
    --mount=type=cache,target=/root/.cache/go-build \
    go build -o main .

Using the HTTP Cache API

If your build tool supports HTTP-based remote caching, you can integrate it with Namespace’s managed build cache using the HTTP Cache API.The EnsureHttpCache RPC provisions a cache and returns a WebDAV endpoint URL with short-lived credentials (username/password):

grpcurl -H "Authorization: Bearer $NSC_TOKEN" \
  global.namespaceapis.com:443 \
  namespace.cloud.integrations.httpcache.v1beta.HttpCacheService/EnsureHttpCache \
  -d '{"name": "my-cache"}'

{
    "cacheEndpointUrl": "https://httpcache.ord.namespaceapis.com/my-cache",
    "username": "token",
    "password": "nsc_...",
    "expiresAt": "2026-03-05T17:00:00Z",
    "site": "ord"
}

The returned endpoint supports standard HTTP methods — you can store and retrieve cache artifacts using PUT and GET with basic auth:

# Store an artifact
curl -u "token:$CACHE_PASSWORD" \
  -X PUT --upload-file build-output.tar.gz \
  "https://httpcache.ord.namespaceapis.com/my-cache/my-key"

# Retrieve an artifact
curl -u "token:$CACHE_PASSWORD" \
  -o build-output.tar.gz \
  "https://httpcache.ord.namespaceapis.com/my-cache/my-key"

This approach works with any tool that supports HTTP PUT/GET for caching, such as sccache (WebDAV) or custom build scripts.

What’s next?

The Namespace team provides expert consultation to help you optimize your cache strategy and achieve maximum performance benefits. Reach out to support@namespace.so to talk to one of our engineers and learn about best practices and upcoming integrations.

Last modified onAugust 20, 2026

Ctrl+I

Documentation Index

​ Using Cache Volumes

​ From GitHub Actions

​ Using Cache Mounts

​ Framework-Specific Examples

​ Python with pip

​ APT packages

​ Go Applications

​ Using the HTTP Cache API

​ What’s next?